UUM-125 Sea Lance

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UUM-125 Sea Lance
Artist concept
Type	Standoff Anti-Submarine
Place of origin	United States
Service history
Used by	United States Navy
Production history
Manufacturer	Boeing
Produced	Cancelled, 1990
Specifications
Mass	1,400 kg (3,086 pounds)
Length	6.25 m (20 ft 6 in)
Diameter	53.3 cm (21.0 in) (capsule diameter)
Detonation mechanism	RUM/UUM-125A W89 thermonuclear RUM/UUM-125B Mark 50 homing torpedo
Engine	Hercules EX 116 MOD 0 solid-fuel rocket
Operational range	UUM-125A 185 kilometres (100 nautical miles) UUM-125B 65 kilometres (35 nautical miles)
Maximum speed	Mach 1.5
Guidance system	Mk 117 digital fire-control system
Launch platform	Submarines • Los Angeles class • Seawolf class Surface Warships • Ticonderoga class • Spruance class • Arleigh Burke class

The UUM-125 Sea Lance, known early in development as the Common ASW Standoff Weapon, was to be an American standoff anti-submarine missile, initially intended to carry a W89 thermonuclear warhead. It was conceived in 1980 as a successor to both the UUM-44 SUBROC and RUR-5 ASROC anti-submarine missiles. The Sea Lance was to be available in two versions, known as UUM-125A and RUM-125A. The former would be a submarine-launched version, the latter surface-launched. It was cancelled in 1990 as its importance was obviated by the collapse of the Soviet Union.